Thermo Scientific™ Nalgene™ Rapid-Flow™ Sterile Disposable Bottle Top Filters with PES Membrane Available on GSA/VA Contract for Federal Government customers only.

Perform sterile filtration of cell culture media and serum with Thermo Scientific™ Nalgene™ Rapid-Flow™ Sterile Disposable Bottle Top Filters with PES Membranes.

Manufacturer: Thermo Scientific™ 2953345

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Catalog No. 09-740-64A

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CAUTION: Use only sterile bottles designed for use with vacuum. Always use safety shield during vacuum procedures.


Limited warranty period: Subject to all warranty requirements and exclusions set out in our Terms and Conditions of Sale, this product is warranted from the date we ship the product and for ninety (90) days thereafter. Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement.


    Pore Size 0.45μm
    Type Bottle Top Filters
    Diameter (Metric) Membrane 75mm
    Diameter (Metric) Outer 75mm
    No. per Pack 12
    No. per Case 12
    Membrane PES
    Sterile Yes
    Fits Bottle Neck Size (Metric) 33mm
    Pore Size (Metric) 0.45µm
    Volume 500mL

    Perform sterile filtration of cell culture media, serum, additives and buffers with Thermo Scientific™ Nalgene™ Rapid-Flow™ Sterile Disposable Bottle Top Filters with PES Membranes. Features fast flow rates, a high throughput for increased filtration efficiency and exclusive Rapid-Flow support plate design.

    • Filters marked with catalog number, membrane type and pore size, lot number and expiration date for easy traceability
    • Gamma radiation sterilized and individually bagged for a 5-year sterile shelf life
    • Molded-in graduations for easy visualization of sample size
    • Side-arm with quick-disconnect tubing adapter for easy change between filters
    • Use with Nalgene storage bottles with catalog numbers starting with 455- or glass bottles rated for vacuum
    • Non-cytotoxic and non-pyrogenic

    Polyethersulfone (PES) membranes

    • PES is the best membrane for cell culture fluids; lowest protein binding to maintain protein balance, lowest extractables to maintain media purity
    • Asymmetric PES membrane plus unique Rapid-Flow support plate design provide fast flow and high throughput of fluids for increased filtration efficiency
    • Use 0.2 µm membranes for sterile filtration, 0.45 µm membranes for fluid clarification and particle removal


    Polystyrene graduated chamber; Blue color-coded collar with cellulosic vent plug side arm and quick-disconnect tubing adapter; 50, 75, or 90 mm diameter membranes; bottom screw threads for attachment to bottles with 33 or 45 mm neck sizes.

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